‎设函数<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/b071811451714ab2887e6fe1a7248d7b.png?x-oss-process=image/sharpen,200"/>，其中<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/74468e2ff6fd418393a9e25422b6603f.png?x-oss-process=image/sharpen,200"/>是不超过<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/b2cf6bc3d359467f8ef41b774a5c43dc.png?x-oss-process=image/sharpen,200"/>的最大整数，则（）。‎